121103133121 has 8 divisors (see below), whose sum is σ = 128261823624. Its totient is φ = 113948328960.

The previous prime is 121103133097. The next prime is 121103133127. The reversal of 121103133121 is 121331301121.

It can be written as a sum of positive squares in 4 ways, for example, as 33907539600 + 87195593521 = 184140^2 + 295289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121103133121 - 2⁷ = 121103132993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121103133127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907300 + ... + 1032181.

It is an arithmetic number, because the mean of its divisors is an integer number (16032727953).

Almost surely, 2^121103133121 is an apocalyptic number.

It is an amenable number.

121103133121 is a deficient number, since it is larger than the sum of its proper divisors (7158690503).

121103133121 is a wasteful number, since it uses less digits than its factorization.

121103133121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943171.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121103133121 its reverse (121331301121), we get a palindrome (242434434242).

The spelling of 121103133121 in words is "one hundred twenty-one billion, one hundred three million, one hundred thirty-three thousand, one hundred twenty-one".